D56.1

ICD-10Billable

Beta thalassemia

Official ICD-10-CM descriptor (FY2026)

Beta thalassemia

D56.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Beta thalassemia major
  • Cooley's anemia
  • Homozygous beta thalassemia
  • Severe beta thalassemia
  • Thalassemia intermedia
  • Thalassemia major

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • beta thalassemia minor (D56.3)
  • beta thalassemia trait (D56.3)
  • delta-beta thalassemia (D56.2)
  • hemoglobin E-beta thalassemia (D56.5)
  • sickle-cell beta thalassemia (D57.4-)

Related codes in D56

Where this code sits

Parent code
D56

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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